Net income attributable to common shareholders, and net income attributable to common shareholders excluding the contribution from the GreyCastle Life Retro Arrangements,1 of $70.6 million and $170.5 million, respectively, for the quarter

Operating net income2 of $122.5 million, or $0.44 per share, for the quarter on a fully diluted basis

P&C combined ratio of 93.1% for the quarter compared to 95.3% in the prior year quarter

Natural catastrophe pre-tax losses net of reinsurance and reinstatement premiums in the quarter of $97.4 million (4.1 points to the loss ratio), compared to $30.8 million (1.3 points to the loss ratio), in the prior year quarter

Integration costs related to the combination with Catlin Group Limited ("Catlin") totaled approximately $54.5 million in the quarter

Fully diluted book value per common share of $42.37 at September 30, 2016, an increase of $0.66 or 1.6%, from fully diluted book value per ordinary share of $41.71 at June 30, 2016

Fully diluted tangible book value per common share3 of $34.22 at September 30, 2016, an increase of $0.43 or 1.3%, from fully diluted tangible book value per ordinary share at June 30, 2016

Annualized operating return on average common shareholders' equity4 on a year-to-date basis excluding and including average unrealized gains and losses on investments was 4.2% and 3.8%, respectively. Excluding integration costs these return rates would have been 6.0% and 5.5%, respectively.

XL Group Ltd ("XL" or the "Company") (NYSE: XL) today reported its third quarter results.

"XL's third quarter 2016 financial results demonstrated steady progress in our underlying performance. We generated P&C underwriting profit of $167 million and our P&C accident-year, ex-catastrophe combined ratio of 91.3% was a full 3.8 points better than the same quarter a year ago. Our clients, brokers and trading partners continued to show confidence in us as we maintain our underwriting discipline. This approach, combined with our recently announced planned realignment of our P&C operations, have us confident in our ability to further drive innovation and client service. We are committed to building on this improvement as the benefits of the combined XL Catlin platform become more visible."

Highlights

Three and Nine Months Ended September 30

(U.S. dollars in thousands, except per share amounts)

Three Months Ended

Nine Months Ended

(Unaudited)

(Unaudited)

(Note 1)

2016

2015

2016

2015

Net income (loss) attributable to common shareholders

$70,601

$27,282

$136,268

$978,602

Per average common share outstanding-fully diluted

$0.25

$0.09

$0.48

$3.40

Operating net income (loss)

$122,454

$70,792

$332,289

$510,965

Per average common share outstanding-fully diluted

$0.44

$0.23

$1.16

$1.78

Note 1: The Company's results for the nine months ended September 30, 2015 include those of Catlin Group Limited from May 1, 2015.

Net income attributable to common shareholders of $70.6 million for the quarter increased compared to $27.3 million in the prior year quarter. The current quarter includes approximately $54.5 million in integration costs as well as $97.4 million in natural catastrophe losses compared to $55.2 million in integration costs and $30.8 million in natural catastrophe losses in the prior year quarter.

Operating net income of $122.5 million for the quarter increased compared to operating net income of $70.8 million in the prior year quarter.

Net income from affiliates was $24.6 million for the quarter, compared to net income of $4.5 million in the prior year quarter. This increase was driven by positive earnings in all categories of affiliate holdings.

Net investment income for the quarter was $209.8 million, compared to $225.1 million in the prior year quarter and $215.4 million in the second quarter of 2016. Net investment income excluding the Life Funds Withheld Assets for the quarter was $170.8 million, compared to $178.6 million in the prior year quarter and $176.2 million in the second quarter of 2016.

Operating expenses were 10.8% favorable versus the prior year quarter, reflecting the emergence of operational efficiencies and realization of synergy savings resulting from the Catlin transaction as well as benefits from foreign exchange particularly from the weakening of the British Pound compared to the U.S. dollar. Excluding Catlin-related transaction and integration costs, ongoing operating expenses were even more favorable at 11.6% compared to the prior year quarter.

Income tax expense for the quarter of $17.7 million represents a year-to-date operating effective tax rate of approximately 8.5%. The decline in the effective tax rate is primarily driven by higher catastrophe losses incurred in higher tax jurisdictions.

Fully diluted tangible book value per common share increased by $0.43 from the prior quarter to $34.22, driven by the increase in our unrealized gains on investments combined with share buybacks and net income and partially offset by payment of dividends.

Share buybacks totaled approximately 6.6 million shares or $221.8 million during the quarter, compared to 4.8 million shares or $180.0 million in the prior year quarter. Share buybacks on a year to date basis at September 30, 2016, totaled approximately 26.2 million shares or $905.2 million, compared to 7.7 million shares or $290 million during the same period in the prior year. At September 30, 2016, $594.1 million of common shares remained available for purchase under our share buyback program.

P&C Operations

Three and Nine Months Ended September 30

(U.S. dollars in thousands)

Three Months Ended

Nine Months Ended

(Unaudited)

(Unaudited)

(Note 1)

2016

2015

2016

2015

Gross premiums written

$2,718,920

$2,659,142

$10,609,013

$8,141,243

Net premiums written

$2,133,298

$2,073,216

$7,917,504

$6,010,032

Net premiums earned

$2,431,677

$2,405,740

$7,311,827

$5,789,029

Underwriting profit (loss)

$166,851

$114,118

$444,233

$469,733

Loss ratio

61.3%

60.9%

61.6%

58.5%

Underwriting expense ratio

31.8%

34.4%

32.3%

33.4%

Combined ratio

93.1%

95.3%

93.9%

91.9%

Note 1: The Company's results for the nine months ended September 30, 2015 include those of Catlin Group Limited from May 1, 2015.

P&C gross premiums written ("GPW") in the third quarter increased 2.2% compared to the prior year quarter.

The Insurance segment GPW decreased 2.1% from the prior year quarter partly due to unfavorable foreign exchange impact resulting from the weakening of the British Pound against the U.S. dollar. Excluding the impact of foreign exchange, GPW decreased by 1.0% most notably in Aerospace, Accident & Health and Commercial Errors & Omission business lines. These decreases were partially offset by higher premium in Political Risk & Trade Credit, Property International Open Markets and Cyber business lines.

The Reinsurance segment GPW increased by 23.2% from the prior year quarter. The increase was primarily due to significant new business in the Property Treaty and Credit lines of business in the Asia Pacific region and new business in Casualty and Property Treaty lines of business in the North American region.

P&C net premiums earned ("NPE") in the third quarter of $2.4 billion were comprised of $1.65 billion from the Insurance segment and $778.2 million from the Reinsurance segment.

The P&C loss ratio in the current quarter was 0.4 percentage points higher than in the prior year quarter. The P&C loss ratio variance was impacted by natural catastrophe pre-tax losses net of reinsurance and reinstatement premiums of $97.4 million, compared to $30.8 million in the prior year quarter. Included in the P&C loss ratio was favorable development of $53.6 million compared to $28.1 million in the prior year quarter. Excluding prior year development and natural catastrophe losses, the third quarter P&C loss ratio was 1.2 percentage points favorable versus the prior year quarter due largely to the Tianjin, China port explosion loss in the third quarter of 2015.

The P&C combined ratio excluding prior year development and the impact of natural catastrophe losses for the quarter was 91.3%, compared to 95.1% for the prior year quarter. The Insurance segment combined ratio on this basis was 93.3% for the quarter compared to 96.3% for the prior year quarter, while the Reinsurance segment combined ratio on this basis was 87.1% for the quarter compared to 92.7% for the prior year quarter. Overall, improvements on each component of the combined ratio reflect disciplined underwriting as well as continued emergence of operational synergies.

Further details of the results for the quarter may be found in the Company's Financial Supplement and Earnings Presentation, each of which is dated October 26, 2016 and is available on the Investor Relations section of XL's website.

A conference call to discuss the Company's results will be held at 5:00 p.m. Eastern Time on Wednesday, October 26, 2016. The conference call can be accessed through a listen-only dial-in number or through a live webcast. To listen to the conference call, please dial (210) 795-0624 or (866) 617-1526: Passcode: "XL GLOBAL". The webcast will be available at www.xlgroup.com and will be archived on XL's website from approximately 9:00 p.m. Eastern Time on October 26, 2016, through midnight Eastern Time on November 26, 2016. A telephone replay of the conference call will also be available beginning at approximately 9:00 p.m. Eastern Time on October 26, 2016, until midnight Eastern Time on November 26, 2016, by dialing (203) 369-1085 or (866) 442-2153. The following passcode will be required: 9251.

About XL Group Ltd

XL Group Ltd (NYSE: XL), through its subsidiaries and under the "XL Catlin" brand, is a global insurance and reinsurance company providing property, casualty and specialty products to industrial, commercial and professional firms, insurance companies and other enterprises throughout the world. Clients look to XL Catlin for answers to their most complex risks and to help move their world forward. To learn more, visit www.xlgroup.com.

This press release contains forward-looking statements. Statements that are not historical facts, including statements about XL's beliefs, plans or expectations, are forward-looking statements. These statements are based on current plans, estimates and expectations, all of which involve risk and uncertainty. Statements that include the words "expect," "estimate," "intend," "plan," "believe," "project," "anticipate," "may," "could," or "would" and similar statements of a future or forward-looking nature identify forward-looking statements. Actual results may differ materially from those included in such forward-looking statements and therefore you should not place undue reliance on them. A non-exclusive list of the important factors that could cause actual results to differ materially from those in such forward-looking statements includes (a) the continuation of downward trends in rates for property and casualty insurance and reinsurance; (b) changes in the size of our claims relating to unpredictable natural or man-made catastrophe losses due to the preliminary nature of some reports and estimates of loss and damage to date; (c) changes in the number of insureds and ceding companies impacted or the ultimate number and value of individual claims relating to 2016 natural catastrophe events due to the preliminary nature of reports and estimates of loss and damage to date; (d) changes in the amount or type of business that we write, whether due to our actions, changes in market conditions or other factors, and the amount of premium attributable to such business; (e) the availability, cost or quality of ceded reinsurance, and the timely and full recoverability of such reinsurance, or other amounts due to us, or changes to our projections related to such recoverables; (f) actual loss experience from insured or reinsured events and the timing of claims payments being faster or the receipt of reinsurance recoverables being slower than we anticipated; (g) increased competition on the basis of pricing, capacity, coverage terms or other factors, such as the increased inflow of third party capital into reinsurance markets, which could harm our ability to maintain or increase its business volumes or profitability; (h) greater frequency or severity of claims and loss activity than our underwriting, reserving or investment practices anticipate based on historical experience or industry data; (i) the impact of changes in the global financial markets, such as the effects of inflation on our business, including on pricing and reserving, changes in interest rates, credit spreads, foreign currency exchange rates and future volatility in the world's credit, financial and capital markets that adversely affect the performance and valuation of our investments, future financing activities and access to such markets, our ability to pay claims or general financial condition; (j) our ability to successfully implement our business strategy; (k) our ability to successfully attract and raise additional third party capital for existing or new investment vehicles; (l) changes in credit ratings and rating agency policies or practices, which could trigger cancelation provisions in our assumed reinsurance agreements or impact the availability of our credit facilities; (m) the potential for changes to methodologies, estimations and assumptions that underlie the valuation of our financial instruments that could result in changes to investment valuations; (n) changes to our assessment as to whether it is more likely than not that we will be required to sell, or have the intent to sell, available-for-sale fixed maturity securities before their anticipated recovery; (o) unanticipated constraints on our liquidity, including the availability of borrowings and letters of credit under credit facilities that inhibit our ability to support our operations, including our ability to underwrite policies and pay claims; (p) the ability of our subsidiaries to pay dividends to XL Group Ltd, XLIT Ltd. and Catlin Insurance Company Ltd; (q) changes in regulators or regulations applicable to us, including as a result of the completion of our redomestication from Ireland to Bermuda, such as changes in regulatory capital balances that our operating subsidiaries must maintain, or to our brokers or customers; (r) the effects of business disruption, economic contraction or economic sanctions due to unpredictable global political and social conditions such as war, terrorism or other hostilities, or pandemics; (s) the actual amount of new and renewal business and acceptance of our products and services, including new products and services and the materialization of risks related to such products and services; (t) changes in the distribution or placement of risks due to increased consolidation of insurance and reinsurance brokers; (u) bankruptcies or other financial concerns of companies insofar as they affect P&C insurance and reinsurance coverages or claims that we may have as a counterparty; (v) the loss of key personnel; (w) the effects of mergers, acquisitions and divestitures, including our ability to modify our internal control over financial reporting, changes to our risk appetite and our ability to realize the value or benefits expected, in each case, as a result of such transactions; (x) changes in general economic conditions, including the political, monetary, economic and operational impacts of the "Brexit" referendum held on June 23, 2016 in which the UK electorate voted to withdraw from the EU, new or continued sovereign debt concerns in Euro-Zone countries or emerging markets such as Brazil or China, or governmental actions for the purposes of stabilizing financial markets; (y) changes in applicable tax laws, tax treaties or tax regulations or the interpretation or enforcement thereof; (z) judicial decisions and rulings, new theories of liability or emerging claims coverage issues, legal tactics and settlement terms; (aa) the effects of climate change (such as changes to weather patterns, sea levels or temperatures) on our business, which our modeling or risk management practices may not adequately address due to the uncertain nature of climate change; and (bb) the other factors set forth in our reports on Form 10-K and Form 10-Q and other documents on file with the Securities and Exchange Commission. XL undertakes no obligation to update publicly any forward looking statement, whether as a result of new information, future developments or otherwise.

XL intends to use its website as a means of disclosing material non-public information and for complying with its disclosure obligations under Regulation FD. Such disclosures will be included on the website in the Investor Relations section. Accordingly, investors should monitor such portions of XL's website, in addition to following its press releases, SEC filings and public conference calls and webcasts.

*At 12:30 p.m., Irish time, on July 25, 2016 (the "Effective Time"), XL Group plc, an Irish public limited company ("XL-Ireland"), and XL Group Ltd, a Bermuda exempted company ("XL-Bermuda"), completed the previously disclosed scheme of arrangement under Irish law (the "Scheme of Arrangement") that effected a transaction (the "Redomestication") that resulted in the shareholders of XL-Ireland becoming shareholders of XL-Bermuda and XL-Ireland becoming a subsidiary of XL-Bermuda. In accordance with the terms of the Scheme of Arrangement, the following steps occurred effectively simultaneously at the Effective Time: (i) all of the existing XL-Ireland commons, par value $0.01 per share (the "XL-Ireland commons"), (other than XL-Ireland ordinary shares held by XL-Bermuda) were canceled; (ii) the reserves created on cancellation of the XL-Ireland ordinary shares were used to issue XL-Ireland ordinary shares to XL-Bermuda; and (iii) in return for such issuance of new XL-Ireland ordinary shares to XL-Bermuda, XL-Bermuda issued common shares, September 30, 2016, a period that commenced prior to the Redomestication, and therefore this release discloses the results of XL Bermuda, but includes the results of XL-Ireland through the Effective Time. For purposes of this release, the "Company" and "XL" refers to XL-Ireland or XL-Bermuda, as the context requires.

1On May 1, 2014, our wholly-owned subsidiary, XL Insurance (Bermuda) Ltd ("XLIB") (on June 9, 2016, XLIB and XL Re Ltd amalgamated to form XL Bermuda Ltd), entered into a sale and purchase agreement with GreyCastle Holdings Ltd. ("GreyCastle") providing for the sale of 100% of the common shares of XLIB's wholly-owned subsidiary, XLLR, for $570 million in cash. This transaction was completed on May 30, 2014. As a result of the transaction, we have ceded the majority of our life reinsurance business to XLLR via 100% quota share reinsurance (the "GreyCastle Life Retro Arrangements"). The designated investments that support the GreyCastle Life Retro Arrangements, which are written on a funds withheld basis ("Life Funds Withheld Assets"), are included within "Total investments available for sale" and "Fixed maturities, trading at fair value" on our balance sheet. Investment results for these assets - including interest income, unrealized gains and losses, and gains and losses from sales - are passed directly to the reinsurer pursuant to a contractual arrangement that is accounted for as a derivative.

2Operating net income is defined as net income (loss) attributable to common shareholders excluding: (1) our net investment income - Life Funds Withheld Assets, (defined below) (2) our net realized (gains) losses on investments sold - excluding Life Funds Withheld Assets, (3) our net realized (gains) losses on investments sold (including OTTI) and net unrealized (gains) losses on investments, Trading - Life Funds Withheld Assets, (4) our net realized and unrealized (gains) losses on derivatives, (5) our net realized and unrealized (gains) losses on life retrocession embedded derivative and derivative instruments - Life Funds Withheld Assets, (6) our share of items (2) and (4) for The Company's insurance company affiliates for the periods presented, (7) our foreign exchange (gains) losses, (8) our expenses related to the Catlin acquisition, (9) our gain on the sale of our interest in our former operating affiliate, ARX Holding Corp., (10) our gain on the sale of our wholly-owned subsidiary XL Life Insurance and Annuity Company ("XLLIAC"), and (11) a provision (benefit) for income tax on items excluded from operating income. "Operating net income", "annualized operating return on average common shareholders' equity" and "annualized operating return on average common shareholders' equity excluding average unrealized gains and losses on investments" and "Integration costs" are non-GAAP financial measures. See the schedule entitled "Reconciliation" on page 9 of this press release for a reconciliation of "operating net income" to net income (loss) attributable to common shareholders and the calculation of "annualized operating return on average common shareholders' equity" and "annualized operating return on average common shareholders' equity excluding average unrealized gains and losses on investments", both of which are based on operating net income.

3Fully diluted tangible book value per common share is a non-GAAP financial measure. See page 8 of this press release for a reconciliation of fully diluted tangible book value per common share to fully diluted book value per common share.

4Common shareholders' equity is defined as total shareholders' equity less non-controlling interest in equity of consolidated subsidiaries.

Note 1: Certain items have been reclassified to conform to the current period presentation.

Note 2: Common shares outstanding include all common shares issued and outstanding (as disclosed on the face of the balance sheet) as well as all director share units outstanding.

Note 3: Fully diluted tangible book value per common share is a non-GAAP financial measure. Fully diluted tangible book value per common share is calculated in the same manner as fully diluted book value per common share except that goodwill and intangible assets of $2.234 million for September 30, 2016 and $2.210 million for December 31, 2015 are excluded from common shareholders' equity.

XL Group Ltd

RECONCILIATION

The following is a reconciliation of XL's net income (loss) attributable to common shareholders to operating net income (loss) (Note 5) and also includes the calculation of annualized return on average common shareholders' equity and annualized return on average common shareholders' equity excluding average unrealized gains and losses on investments, in each case based on operating net income (loss) for the three and nine months ended September 30, 2016 and 2015.

Annualized operating return on average common shareholders' equity excluding integration costs and unrealized gains and losses on investments (Notes 5 and 7)

6.6%

4.3%

6.0%

8.0%

Note 1: Certain amounts have been reclassified to conform to the current period presentation.

Note 2: The Company's results for the nine months ended September 30, 2015 include those of Catlin Group Limited from May 1, 2015.

Note 3: Investment results for the Life Funds Withheld Assets - including interest income, unrealized gains and losses, and gains and losses from sales - are passed directly to the reinsurer pursuant to a contractual arrangement that is accounted for as a derivative. Changes in the fair value of the embedded derivative associated with these GreyCastle Life Retro Arrangements are reflected within "Net realized and unrealized (gains) losses on life retrocession embedded derivative and derivative instruments - Life Funds Withheld Assets" in the reconciliation above.

Note 4: On September 30, 2016, the Company completed the sale of its wholly-owned subsidiary, XL Life Insurance and Annuity Company ("XLLIAC") and as a result, recorded a $3.7 million gain.

Note 5: Defined as net income (loss) attributable to common shareholders excluding: (1) our net investment income - Life Funds Withheld Assets, (defined below) (2) our net realized (gains) losses on investments sold - excluding Life Funds Withheld Assets, (3) our net realized (gains) losses on investments sold (including OTTI) and net unrealized (gains) losses on investments, Trading - Life Funds Withheld Assets, (4) our net realized and unrealized (gains) losses on derivatives, (5) our net realized and unrealized (gains) losses on life retrocession embedded derivative and derivative instruments - Life Funds Withheld Assets, (6) our share of items (2) and (4) for The Company's insurance company affiliates for the periods presented, (7) our foreign exchange (gains) losses, (8) our expenses related to the Catlin acquisition, (9) our gain on the sale of our interest in our former operating affiliate, ARX Holding Corp. and (10) our gain on the sale of our wholly-owned subsidiary XL Life Insurance and Annuity Company ("XLLIAC"), and (11) a provision (benefit) for income tax on items excluded from operating income. We believe that showing "operating net income (loss)", "annualized operating return on average common shareholders' equity" and "annualized operating return on average common shareholders' equity excluding average unrealized gains and losses on investments and integration costs" enables investors and other users of our financial information to analyze our performance in a manner similar to how we analyze our performance. In this regard, we believe that providing only a GAAP presentation of net income (loss) would make it more difficult for users of our financial information to evaluate our underlying business. We also believe that equity analysts and certain rating agencies that follow us (and the insurance industry as a whole) exclude these items from their analyses for the same reasons, and they request that we provide this non-GAAP financial information on a regular basis. A reconciliation of our net income (loss) attributable to common shareholders to operating net income (loss) is provided above.

Note 6: Diluted weighted average number of common shares outstanding is used to calculate per share data except where it is anti-dilutive to earnings per share or where there is a net loss. When it is anti-dilutive or when a net loss occurs, basic weighted average common shares outstanding is utilized in the calculation of net loss per share and net operating loss per share.

Note 7: Common shareholders' equity is defined as total shareholders' equity less non-controlling interest in equity of consolidated subsidiaries.

Note 8: Unrealized (gain) loss on investments, net of tax is the cumulative impact of mark to market fluctuations on our investment portfolio that have not been realized through sales.

Comment on Regulation G

XL presents its operations in ways it believes will be most meaningful and useful to investors, analysts, rating agencies and others who use XL's financial information in evaluating XL's performance. This press release contains the presentation of (i) operating net income (loss) ("Operating Net Income"), which is defined as net income (loss) attributable to common shareholders excluding: (1) net investment income - Life Funds Withheld Assets, (2) net realized (gains) losses on investments sold - excluding Life Funds Withheld Assets,(3) net realized (gains) losses on investments sold (including OTTI) and net unrealized (gains) losses on investments, Trading - Life Funds Withheld Assets, (4) net realized and unrealized (gains) losses on derivatives, (5) net realized and unrealized (gains) losses on life retrocession embedded derivative and derivative instruments - Life Funds Withheld Assets, (6) our share of items (2) and (4) for XL's insurance company affiliates for the periods presented, (7) foreign exchange (gains) losses, (8) our expenses related to the Catlin acquisition, (9) our gain on the sale of our interest in our operating affiliate, ARX, (10) our gain on the sale of our wholly-owned subsidiary XL Life Insurance and Annuity Company ("XLLIAC"), and (11) a provision (benefit) for income tax on items excluded from operating income.; (ii) annualized return on average common shareholders' equity ("ROE") based on operating net income (loss) ("Operating ROE"); (iii) Operating ROE excluding average unrealized gains and losses on investments and integration costs; (iv) annualized net income (loss) attributable to common shareholders excluding the Contribution from the GreyCastle Life Retro Arrangements and (v) Fully diluted tangible book value per common share (common shareholders' equity excluding goodwill and intangible assets divided by the number of shares outstanding at the period end date combined with the dilutive impact of potential future share issues at any period end). These items are "non-GAAP financial measures" as defined in Regulation G. The reconciliation of such measures to the most directly comparable GAAP financial measures in accordance with Regulation G is included in this press release on pages 9 and 10.

Although the investment of premiums to generate income (or loss) and realize capital gains (or losses) is an integral part of XL's operations, the determination to realize capital gains (or losses) is independent of the underwriting process. In addition, under applicable GAAP accounting requirements, losses can be created as the result of other than temporary declines in value and from goodwill impairment charges without actual realization. In this regard, certain users of XL's financial information, including certain rating agencies, evaluate earnings before tax and capital gains to understand the profitability of the operational sources of income without the effects of these two variables. Furthermore, these users believe that, for many companies, the timing of the realization of capital gains and the recognition of goodwill impairment charges are largely a function of economic and interest rate conditions.

Net realized and unrealized (gains) losses on derivatives include all derivatives entered into by XL other than certain credit derivatives and the life retrocession embedded derivative. With respect to credit derivatives, because XL and its insurance company operating affiliates generally hold financial guaranty contracts written in credit default derivative form to maturity, the net effects of the changes in fair value of these credit derivatives are excluded (similar with other companies' treatment of such contracts), as the changes in fair value each quarter are not indicative of underlying business performance.

Net investment income - Life Funds Withheld Assets, and net realized (gains) losses on the life retrocession embedded derivative and derivative instruments - Life Funds Withheld Assets, have been excluded because, as a result of the GreyCastle Life Retro Arrangement, XL no longer shares in the risks and rewards of the underlying performance of the Life Funds Withheld Assets that support these retrocession arrangements. The returns on the Life Funds Withheld Assets are passed directly to the reinsurer pursuant to a contractual arrangement that is accounted for as a derivative. Therefore, net investment income from the Life Funds Withheld Assets and changes in the fair value of the embedded derivative associated with these GreyCastle Life Retro Arrangements are not relevant to XL's underlying business performance.

Foreign exchange (gains) losses in the income statement are only one element of the overall impact of foreign exchange fluctuations on XL's financial position and are not representative of any economic gain or loss made by XL. Accordingly, it is not a relevant indicator of financial performance and it is excluded.

In summary, XL evaluates the performance of and manages its business to produce an underwriting profit. In addition to presenting net income (loss), XL believes that showing operating net income (loss) enables investors and other users of XL's financial information to analyze XL's performance in a manner similar to how management of XL analyzes performance. In this regard, XL believes that providing only a GAAP presentation of net income (loss) would make it much more difficult for users of XL's financial information to evaluate XL's underlying business. Also, as stated above, XL believes that the equity analysts and certain rating agencies that follow XL (and the insurance industry as a whole) exclude these items from their analyses for the same reasons and they request that XL provide this non-GAAP financial information on a regular basis.

Operating ROE is a widely used measure of any company's profitability that is calculated by dividing annualized operating net income for any period other than a fiscal year when actual operating income is used by the average of the opening and closing common shareholders' equity. XL establishes target Operating ROEs for its total operations, segments and lines of business. If XL's Operating ROE targets are not met with respect to any line of business over time, XL seeks to re-evaluate these lines. Operating ROE excluding and including net unrealized gains and losses on investments, both inclusive of and exclusive of integration costs, are additional measures of Company profitability that eliminate, as applicable, the impacts of mark to market fluctuations on XL's investment portfolio that have not been realized through sales, and/or distortions to XL's performance from temporary integration costs related to the combination with Catlin. By providing these additional measures, users of our financial statements have the ability to include or exclude these items when considering our performance either on a standalone basis or for purposes of peer performance comparison.

XL believes that fully diluted tangible book value per common share is a financial measure important to investors and other interested parties who benefit from having a consistent basis for comparison with other companies within the industry. However, this measure may not be comparable to similarly titled measures used by companies either outside or inside of the insurance industry.